(Swift 3,4,5...) Outlook -- Search Messages in a Particular Folder

Demonstrates search the messages in a particular Outlook mailbox folder.

This uses the OData $filter and $search system query options. See OData System Query Options for general information.

Also see OData URL Conventions for information about $filter, $search and other query options.

This example demonstrates the following searches:

Find emails from a particular email address.
Find emails where the subject contains a particular word or phrase.
Using an "AND" expression.
Find emails received in the last 24 hours.
Find emails received in October 2016
Find unread emails
Find emails containing a particular phrase in the body.
Free-text search of a keyword or phrase.
Free-text search of an email address.

Note: This example requires Chilkat v9.5.0.68 or greater.

Chilkat Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!

    // Use your previously obtained access token here:
    // See the following examples for getting an access token:
    //    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
    //    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
    //    Refresh Access Token (Azure AD v2.0 Endpoint).
    //    Refresh Access Token (Azure AD Endpoint).

    http.authToken = "MICROSOFT_GRAPH_ACCESS_TOKEN"

    let sbResponse = CkoStringBuilder()!

    // In this example, we'd like to get the messages in the folder "/Inbox",
    // but we must specify the corresponding folder_id.  The best way to do this is to create
    // a local map of folderPaths-to-folderIds.
    // This example does it:  Create Outlook Folder Map)
    let htFolderMap = CkoHashtable()!
    let sbMap = CkoStringBuilder()!
    sbMap.loadFile("qa_data/outlook/folderMap.xml", charset: "utf-8")
    htFolderMap.add(fromXmlSb: sbMap)

    // Get the ID for the "/Inbox" folder:
    var folderId: String? = htFolderMap.lookupStr("/Inbox")
    if htFolderMap.lastMethodSuccess != true {
        print("Folder ID not found")
        return
    }

    var success: Bool = true
    let json = CkoJsonObject()!
    json.emitCompact = false

    http.setUrlVar("folder_id", value: folderId)
    http.setUrlVar("select", value: "subject,from")

    // -----------------------------------------------------------------------------------------------------
    // Only return emails from "chilkat.support@gmail.com"
    http.setUrlVar("filter", value: "from/emailAddress/address eq 'chilkat.support@gmail.com'")

    // To return the full content of each email, omit the "&select=..." part of the URL.
    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Only return emails where the subject contains "Amazon"
    http.setUrlVar("filter", value: "contains(subject,'Amazon')")

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Only return emails where the subject starts with "this email" and the from address is support@chilkatsoft.com
    // (the startswith function is case insensitive)
    http.setUrlVar("filter", value: "startswith(subject,'this email') and (from/emailAddress/address eq 'support@chilkatsoft.com')")

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received within the last 24 hours
    let sbExpression = CkoStringBuilder()!

    sbExpression.append("receivedDateTime ge ")
    let dt = CkoDateTime()!
    dt.setFromCurrentSystemTime()
    dt.addDays(-1)
    sbExpression.append(dt.getAsTimestamp(false))

    http.setUrlVar("filter", value: sbExpression.getAsString())

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Only return emails received in October 2016
    let dtObj = CkoDtObj()!
    dtObj.year = 2016
    dtObj.month = 10
    dtObj.day = 1
    dtObj.utc = true
    dt.setFrom(dtObj)

    sbExpression.clear()
    sbExpression.append("(receivedDateTime ge ")
    sbExpression.append(dt.getAsTimestamp(false))
    sbExpression.append(") and (receivedDateTime lt ")
    dtObj.month = 11
    dt.setFrom(dtObj)
    sbExpression.append(dt.getAsTimestamp(false))
    sbExpression.append(")")

    // This is the expression we just built:  (receivedDateTime ge 2016-10-01T00:00:00Z) and (receivedDateTime lt 2016-11-01T00:00:00Z)
    print("\(sbExpression.getAsString()!)")

    http.setUrlVar("filter", value: sbExpression.getAsString())

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Return unread emails
    http.setUrlVar("filter", value: "isRead eq false")

    // success = http.QuickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}",sbResponse);
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Return emails with a plain-text or HTML body containing the phrase "Outlook 365"
    http.setUrlVar("filter", value: "contains(body/content,'Outlook 365')")

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$filter={$filter}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Use the $search query option instead of $filter.
    // $search is a free-text search over whatever fields the server deems appropriate, such as in the subject,
    // body, address fields, etc.

    // Search for the word Amazon
    http.setUrlVar("search", value: "Amazon")

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

    // -----------------------------------------------------------------------------------------------------
    // Search for chilkatsoft.com
    // Some chars, such as the "." make it necessary to enclose the search expression in double-quotes.
    http.setUrlVar("search", value: "\"chilkatsoft.com\"")

    success = http.quickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}/messages?$search={$search}&$select={$select}", sbContent: sbResponse)
    if (success != true) && (http.lastStatus.intValue == 0) {
        print("\(http.lastErrorText!)")
        return
    }

    json.loadSb(sbResponse)
    print("\(json.emit()!)")

}