Play all

Welcome and introduction

Off to the SAP Business API Hub to look at the task in hand

Examining the Service Manager API

Looking at the SAP Help Portal docu on how to get an access token and authenticate the calls

Considering the two OAuth 2.0 flows in use

Realising I'm an idiot and had completely missed the content-type header in my quiz question

Examining the docu's curl sample to retrieve a token

Exploring curl's help features

Considering HTTP POST and curl's many facilities for that

A short digression into getting curl to follow redirects with --location, and an examination of --verbose output

Looking at a more comfortable way to express x-www-form-urlencoded name/value pairs with multiple --data parameters

Digging into why the authenticated request for an access token failed: lack of URL encoding of the values

Examining the --data-urlencode parameter option, as opposed to --data

Comparing --include show the response headers with --verbose

Celebrating the receipt of an access token

Trying out a deliberately over-simplified curl request without authentication

Adding, with the --header parameter, a specific Authorization header

Comparing that with the use of --user which generates an Authorization header with some Base64 encoded string for a Basic authentication header automatically

A successfully authenticated call to the /v1/service_offerings endpoint

Avoiding curl's progress indicators with --silent

Getting ready to create a service instance with a POST request and a file-based payload with the @ mechanism of curl's --data parameter

'Useless use of cat' award from shellcheck, hurray!

Examining why we received an error "unsupported media type"

An unexpected but always welcome WhatsApp call from my son Joseph

Fixing the call with another --header parameter to specify that the Content-Type is of the payload I'm sending is application/json curl sends application/x-www-form-urlencoded by default

Getting a lovely HTTP 201 CREATED response altho the Location header is missing and checking the result with ijq and also the btp CLI

Finally, using curl to delete the instance with the --request DELETE parameter

Description:

Explore the powerful command-line HTTP client curl in the SAP enterprise landscape through this comprehensive tutorial. Learn essential techniques for working with HTTP, OAuth 2.0, and SAP Service Manager APIs. Discover how to retrieve access tokens, make authenticated API calls, and manage service instances using curl commands. Gain insights into URL encoding, content types, and HTTP headers while working with SAP Business Technology Platform. Practice creating, examining, and deleting service instances using curl, and learn to interpret API responses using tools like ijq and the btp CLI. Perfect for beginners and experienced developers alike, this hands-on guide covers everything from basic curl syntax to advanced usage scenarios in the SAP ecosystem.

Back to Basics - Using Curl in the SAP Enterprise Landscape

SAP

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#Business #Sales #Customer Relationship Management #SAP #Programming #Web Development #OAuth 2.0 #cURL #Data Science #Data Manipulation #jq