Update README.

README.md

@@ -12,19 +12,104 @@
 </div>
 
 
-A DS team repository for shared data ingestion utilities. 
+A DS team repository for shared data ingestion utilities.
+
+## setup
+
+### 1. Ensure the necessary global environment variables are set in your Python environment.
+
+- For aaq:
+
+```
+AAQ_API_KEY="<secret>"
+AAQ_API_BASE_URL="<url>"
+
+```
+
+- For content_repo:
+
+```
+CONTENT_REPO_API_KEY="<secret>"
+CONTENT_REPO_BASE_URL="<url>"
+
+```
+
+- For flow_results:
+
+```
+FLOW_RESULTS_API_KEY="<secret>"
+FLOW_RESULTS_API_BASE_URL="<url>"
+
+```
+
+- For rapidpro:
+
+```
+RAPIDPRO_API_KEY="<secret>"
+RAPIDPRO_API_BASE_URL="<url>"
+
+```
+- For survey:
+
+```
+SURVEY_API_KEY="<secret>"
+SURVEY_API_BASE_URL="<url>"
+
+```
+
+- For turn: (Original Data Export API)
+
+```
+TURN_API_KEY="<secret>"
+TURN_API_BASE_URL="<url>"
+
+```
+
+If you want to use the s3 utilities (that allow you to read and write specific parquet files amongst other things), the following variables should be set:
+
+```
+S3_KEY="<key>"
+S3_SECRET="<secret>"
+
+```
+
+### 2. Install the `rdw-ingestion-tools` package
+
+There are 2 ways of doing this.
+
+- Versioned install from github:
+
+`rdw-ingestion-tools` is public!
+
+```
+pip3 install git+https://github.com/praekeltfoundation/rdw-ingestion-tools@v0.3.4
+```
+
+- From clone (with [poetry](https://python-poetry.org/docs/)). This is recommended:
+
+```
+git clone git@github.com:praekeltfoundation/rdw-ingestion-tools.git
+
+poetry install
+
+```
 
 ## usage
 
-To interact with an API.
+For more examples on how to interact with particular API endpoints, see the `examples` file. These
+contain examples for each supported third party service and the endpoint associated with each.
+
+For instance, to get flows from the Flow Results Specification API, the example is as follows:
 
 ```
 from api.flow_results import pyFlows
 
-pyFlows.flows.get_ids()
+flows = pyFlows.flows.get_flows()
+
+print(flows.keys())
 ```
 
-To access some of the s3 utilities used in ingestion. 
+To access some of the s3 utilities used in ingestion.
 
 ```
 import os
@@ -39,5 +124,3 @@ pyS3.s3.get_filenames(bucket=bucket, prefix=prefix)
 ## to-do
 
 - Add tests - yes, I am a bad developer for not having any yet.
-- Add release pipeline when tests are done.
-- Write a decent README.